Using an experimental design, this project examines the effects of online professional development courses on high school biology teachers' content and pedagogical knowledge, and on their students' knowledge. The project is testing the impact of using digital resouces and is using hierarchal linear modeling techniques to analyze data. It will contribute to the knowledge base of what impacts student achievement by testing the efficacy of online professional development for science teachers.

This project is funded by the National Science Foundation, grant # 0822241, 1449550, 1650648, 1743807, and 1813076. Any opinions, findings, and conclusions or recommendations expressed in these materials are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.